/*
 * Copyright (c) 2020-2021. the original authors and DEPSEA.ORG
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */
package org.depsea.log.getter.impl;

import com.google.common.cache.CacheLoader;
import io.swagger.annotations.Api;
import org.apache.commons.lang3.StringUtils;
import org.springframework.core.annotation.AnnotationUtils;
import org.springframework.lang.NonNull;


/**
 * @author jaune
 * @since 1.0.0
 */
public class Swagger2ModuleNameCacheLoader extends CacheLoader<Class<?>, String> {

    @Override
    public String load(@NonNull Class<?> clazz) throws Exception {
        var api = AnnotationUtils.findAnnotation(clazz, Api.class);
        if (api != null) {
            return StringUtils.isNotBlank(api.value()) ? api.value() : StringUtils.join(api.tags(), ",");
        } else {
            return null;
        }
    }
}
